# 缺陷坐标xml转txt
import os
import xml.etree.ElementTree as ET
import os
import random
classes = ["smoke"]  # 输入类别名称，必须与xml标注名称一致

def convert(size, box):
    print(size, box)
    dw = 1. / size[0]
    dh = 1. / size[1]
    x = (box[0] + box[1]) / 2.0
    y = (box[2] + box[3]) / 2.0
    w = box[1] - box[0]
    h = box[3] - box[2]
    x = x * dw
    w = w * dw
    y = y * dh
    h = h * dh
    return (x, y, w, h)


def convert_annotation(image_id):
    print(image_id)
    in_file = open(r'./Annotations/%s' % (image_id), 'rb')  # 读取xml文件路径
    out_file = open('./labels/%s.txt' % (image_id.split('.')[0]), 'w')  # 需要保存的txt格式文件路径
    tree = ET.parse(in_file)
    root = tree.getroot()
    size = root.find('size')
    w = int(size.find('width').text)
    h = int(size.find('height').text)
    print(w, h)
    for obj in root.iter('object'):
        cls = obj.find('name').text
        # if cls not in classes:
        #     continue
        # cls_id = classes.index(cls)
        xmlbox = obj.find('bndbox')
        b = (float(xmlbox.find('xmin').text), float(xmlbox.find('xmax').text), float(xmlbox.find('ymin').text),
             float(xmlbox.find('ymax').text))
        print(b)
        bb = convert((w, h), b)
        out_file.write(str('0') + " " + " ".join([str(a) for a in bb]) + '\n')


image_ids_train = os.listdir('./Annotations/')  # 读取xml文件名索引

for image_id in image_ids_train:
    print(image_id)
    convert_annotation(image_id)

#
# trainval_percent = 0.1  # 可自行进行调节
# train_percent = 1
# xmlfilepath = './Annotations'
# total_xml = os.listdir(xmlfilepath)
# num = len(total_xml)
# list = range(num)
# tv = int(num * trainval_percent)
# tr = int(tv * train_percent)
# trainval = random.sample(list, tv)
# train = random.sample(trainval, tr)
# ftest = open('./test.txt', 'w')
# ftrain = open('./train.txt', 'w')
#
# for i in list:
#     name = total_xml[i] + '\n'
#     if i in trainval:
#         if i in train:
#             ftest.write('data/images/' + name.replace('xml', 'jpg'))
#     else:
#         ftrain.write('data/images/' + name.replace('xml', 'jpg'))
# ftrain.close()
# ftest.close()
